INSULATED GATE BIPOLAR TRANSISTOR DRIVE OF A WELDING MACHINE WHICH IS CAPABLE OF REDUCING REPAIR TIME AND COSTS

摘要

PURPOSE: An IGBT(Insulated Gate Bipolar Transistor) drive of a welding machine is provided to reduce inconvenience due to replacement of an element by minimizing damage of an element which is caused by burning on the periphery of a pulse transformer.;CONSTITUTION: A damping resistance(100) and a Zener diode(110) standardize a waveform. The damping resistance and the Zener diode are arranged on the primary side of a pulse transformer(130). The pulse transformer operates an IGBT. The IGBT is used for a power source for welding.;COPYRIGHT KIPO 2013;[Reference numerals] (AA) Output side